harrison



P. HARRISON.

APPARATUS FOR TESTING GASOLENE. APPLICATION FILED Mel 4,1919.

2 SHEETS-SHEET 1.

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fzvenzz' foo/g .22743073 Patented Oct; 12, 1920.

v P. HARRISON. APPARATUS FOR TESTING GASOLENE.

APPLICATION FILED DEC. 4, 1919.

Patented Oct. 12,1920.

2 SHEETS-SHEET 2- UNITED STATES PATENT OFFICE.

POGLE HARRISON, OF KANSAS CITY, INIISSOUR I, ASSIGNOB Ti) STANDARD OIL CQI'JEPANY, OF 'WHITING, INDIANA, A CORPGRATION OF INDIANA.

APPARATUS FOR TESTING- GASOLENE.

Specification of Letters Patent.

Patented Oct. 12, 1920.

Application filed December 4, .1919. Serial No. 342,354.

To all whom it may conccm:

Belt known that 1, Boone HARRISON, a

citizen of the United States, residing at Kansas City, in the county of Jackson and State of. Missouri, have invented a new and useful Improvement in Apparatus for Testing Gasolene, of whichthe following is a specification.

This invention relates to a gasolene testing apparatus and is particularly adapted to be used in making comparative tests of the ignition qualities of various grades of gasolene and the like. It is fully described in the following specification and shown in the accompanying drawings, in which- Figure 1 is a perspective View of my device; Fig. 2, a wiring diagram of the electrical connection; Fig. 8, a plan view of my device with the cover removed; Fig. at, a vertical section on the line H of Fig. 8, and Fig. 5 a vertical section on the line 55 of Fig. 3.

I have illustrated as an embodiment of my invention a box-like structure having a floor 10, glazed sides and ends, 11 and 12 respectively, and a back wall 13 to which is hingedly mounted a cover 14. A partition 15 divides this box in two equal compartments A and B. This partition is carefully set into the bottom and ends of the box and a U-shaped strip 14 secured to the under side of the cover fits snugly over the upper edge of the partition so as to prevent the intercommunication of gases between the two chambers.

The floors of these compartments are sloped somewhat toward the rear as shown in Fig. 5, where a spark plug 16' is inserted in the center of each compartment. The spark plug casings are Preferably grounded on the metal work of the box while the insulated spark plug terminals are connected by means of the wire 17 with any suitable source of high voltage electricity such as a battery 18, and the vibrator 19. The circuit is then completed through a key 20 and a wire 21 which is grounded at any convenient point on the box. A small porcelain receptacle 22 is placed in each of the compartments and at equal distances from the spark plug.

The method of operation of this device is as follows: The spark plugs are adjusted so that when the key 20 is closed sparks of equal intensity will be produced by each.

The cover 14 is raised and it is necessary that the two compartments are carefully alred out. Two containers having the samples of gasolene to be tested are brought near the table on which the testing device 1s placed and a small amount drawn from each in a pipette, the charge from one pipette being placed in a receptacle 22 in the chamber A, while the charge from the other pipette is placed at the same time in the receptacle 22 in the chamber B. It is very essential for a comparative test of this kind that the two charges placed in the receptacles from the pipette shall be of equal amount, and that they shall be placed therein at thesame time.

The cover 14 is now lowered and the switch 20 closed. Sparks are produced from the two spark plugs 16, and the charge in compartment A is ignited, while the charge in compartment B does not ignite. This shows that under the conditions of the test the gasolene in the compartment A is more volatile and more easily ignited.

Before the tester is again used for a test of this kind the cover should be raised and an electric fan or similar means employed to rid the box of all burned and unburned gases, as even small particles of these would tend to influence the results of subsequent tests.

While I have shown and described but a single embodiment of my invention, it is to be understood that it is capable of many modifications. Changes therefore in the construction and arrangement may be made which do not depart from the scope of the appended claims in which it is my intention to claim all novelty inherent in my invens tion as broadly as possible in view of the prior art.

What I claim as new and desire to secure by Letters Patent is:

1. In apparatus of the character set forth, a plurality of similar compartments, means for exposing liquid fuel under the same conditions in each compartment and means for applying ignition equally to said compartments, whereby comparative tests may be made under substantially the same conditions on samples of liquid fuel in said compartments.

2. In apparatus of the character set forth, a plurality of similar compartments, means for exposing liquid fuel under the same con- 3. In apparatus of the character set forth,-

a plurality of similar compartments, means for exposing liquid fuel under the same conditions in each compartment and a spark plug in'each compartment adapted to be energized by electric current of the same voltage, whereby comparative tests may be made under substantially the same conditions on samples of liquid fuel in said compartments.

4:. In apparatus of the character set forth, a plurality of similar compartments, means for exposing liquid fuel under the same conditions in each compartment, and a spark plug in each compartment, said spark plugs being connected in parallel with each other and adapted to be energized by a common source of electricity, whereby comparative tests may be made under substantially the same conditions on samples of liquid fuel in said compartments.

5. In apparatus of the character set forth, a plurality of similar compartments, means for exposing liquid fuel under the same conditions in each compartment and the floor of each compartment sloping toward the ignition means, whereby comparative tests may be made under substantially the same conditions on samples of liquid fuel in said compartments.

6. In apparatus of the character set forth, a plurality of similar compartments, a re ceptacle on the floor at one end of each compartment, for holding fuel to be tested, and a spark plug in the other end, whereby comparative tests may be made under substan tially the same conditions on samples of liquid fuel in said compartments.

7 In apparatus of the character set forth, a plurality of similar compartments, a receptacle on the floor at one end of each compartment,for holding fuel to be tested, and a spark plug in the other end of said compartments sloping toward the spark plugs, whereby comparative tests may be made un der substantially the same conditions on 7 samples of liquid fuel in said compartments.

POOLE HARRISON. 

